Search results for "Submillimeter wave transmitters"

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Universal charts for optical difference frequency generation in the terahertz domain

2010

We present a universal and rigorous approach to study difference frequency generation in the terahertz domain, keeping the number of degrees of freedom to a minimum, through the definition of a suitable figure of merit. The proposed method relies on suitably normalized charts, that enable to predict the optical-to-terahertz conversion efficiency of any system based on wave propagation in quadratic nonlinear materials. The predictions of our approach are found to be in good agreement with the best experimental results reported to date, enabling also to estimate the d22 nonlinear coefficient of high quality GaSe.

Wave propagationComputer scienceTerahertz radiationDegrees of freedom (statistics)FOS: Physical sciencesFrequency conversionSettore ING-INF/01 - ElettronicaOptical pulse generationDomain (software engineering)Semiconductor materialsQuadratic equationQuality (physics)Submillimeter wave transmittersFigure of meritOptical parametric amplifiersElectrical and Electronic EngineeringOptical propagation in nonlinear mediaOptical frequency conversionSettore ING-INF/02 - Campi ElettromagneticiCondensed Matter PhysicsAtomic and Molecular Physics and Opticsoptical parametric amplifiersemiconductor materialNonlinear systemAlgorithmOptics (physics.optics)Physics - OpticsIEEE Journal of Quantum Electronics
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